After Tellin condemned the actions of the influential fan of “unacceptable”, Aberdin issued a statement describing themselves as “dismayed and anger.
The club said they would know “definitely” the chair thrown away from the stadium where fans are accommodated.
And they asked any supporter who had information to contact the club and sworn to “we have the strongest measures available” if a criminal is identified.
Aberden’s support for Tanadis was previously limited in numbers after things were targeted by Jim Goodwin, who was previously responsible for Pittodri, at the last meeting in Tanadis.
United have not yet commented on the incident, but Goodwin, who was targeted in a game last season, called the scenes “Raws”
“I have deliberately out of the pitch because we had previously had a barrier supporter,” he said.
“I was really hopeless that I heard that Jackie had beaten because of something that his supporters had thrown away.
“It is likely to be taken so serious that this will happen so that the authorities will eventually act and do something about it to identify these fools who have really disappointed a good club.